Analysis by: Anthony Joe Melgarejo

ALIASES:

TrojanProxy:Win32/Bunitu!rfn (Microsoft)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan may arrive bundled with malware packages as a malware component. It may be dropped by other malware.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size: 14,336 bytes
File Type: DLL
Initial Samples Received Date: 17 Sep 2015

Arrival Details

This Trojan may arrive bundled with malware packages as a malware component.

It may be dropped by other malware.

Other System Modifications

This Trojan creates the following registry entry(ies) to bypass Windows Firewall:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
"{dropper's file path}" = "{dropper's file path}:*:Enabled:{dropper's file name without file extension}"

Other Details

This Trojan connects to the following possibly malicious URL:

  • 27858987.{BLOCKED}2.info
  • 32629848.{BLOCKED}2.info
  • 36900660.{BLOCKED}2.info
  • cld1.{BLOCKED}net.com
  • cld3.{BLOCKED}net.com
  • {BLOCKED}q4oecon.cloudfront.net
  • {BLOCKED}k649blg.cloudfront.net
  • {BLOCKED}0am7dxp.cloudfront.net
  • {BLOCKED}yrbagrg.cloudfront.net

It requires its main component to successfully perform its intended routine.